Comment 4 for bug 387389

Please have a look at this blog post that describes a Compiz workaround for this issue:
http://techxplorer.com/2009/05/26/fixing-screen-artefacts-with-openoffice-and-ubuntu-linux/

I have yet to confirm that this solves the problem, since I cannot positively confirm it immediately (The bug reveales itself arbitrarily).

I hope this can help you in the making of a more permanent solution.